add back accidentally deleted accumulate and count vars

SteveBronder · SteveBronder · commit 8234959c31bf · 2025-05-29T16:52:25.000-04:00
diff --git a/test/unit/math/mix/util.hpp b/test/unit/math/mix/util.hpp
@@ -18,7 +18,7 @@ inline double get_val(T&& x) {
   } else if constexpr (stan::is_stan_scalar_v<T>) {
     return x;
   } else {
-    static_assert(1, "This function only accepts scalar types!");
+    static_assert(sizeof(T*) == 0, "This function only accepts scalar types!");
   }
 }
 /**

Original file line number	Diff line number	Diff line change
`@@ -18,7 +18,7 @@ inline double get_val(T&& x) {`
`18`	`18`	`} else if constexpr (stan::is_stan_scalar_v<T>) {`
`19`	`19`	`return x;`
`20`	`20`	`} else {`
`21`		`- static_assert(1, "This function only accepts scalar types!");`
	`21`	`+ static_assert(sizeof(T*) == 0, "This function only accepts scalar types!");`
`22`	`22`	`}`
`23`	`23`	`}`
`24`	`24`	`/**`